public void Scan()
{
USN firstUsn = this.FromUsn;
do
{
var usnRecords = this.usnIo.FileSystemReadUsnJournal(UsnJournalReasonMask.All, firstUsn);
foreach (USN_RECORD_V2 usnRecord in usnRecords)
{
var fileDescriptor = new FILE_ID_DESCRIPTOR
{
dwSize = 100,
FileReferenceNumber = usnRecord.FileReferenceNumber,
type = FILE_ID_TYPE.FileIdType
};
var fileHandle = Kernel32.OpenFileById(this.volumeHandle, ref fileDescriptor, FileAccess.Read, FileShare.ReadWrite, IntPtr.Zero, FileAttributes.Normal);
if (fileHandle.IsInvalid)
{
continue;
}
var filePath = Kernel32.GetFinalPathNameByHandle(fileHandle);
var reason = Convert(usnRecord.Reason);
if (this.AcceptFile(filePath, usnRecord.FileName) && this.Filter(filePath, reason))
{
this.recordListener.Listen(filePath, reason);
}
}
if (usnRecords.Length == 0)
{
break;
}
firstUsn.Usn = usnRecords.Last().Usn.Usn + 1;
} while (true);
this.ScanLastUsn = firstUsn.Usn;
}
public static extern IntPtr OpenFileById(IntPtr hFile, FILE_ID_DESCRIPTOR lpFileID, uint dwDesiredAccess, uint dwShareMode, uint dwFlagas);
